While lonely shop girl Resi Gutschi stays faithful to her cheating husband, all the other people in the neighborhood are having affairs and threesomes all over the place.

Kasimir Zwickelhuber is collecting debts in an unusual way: by convincing lonely housewives to auction off sexual favors to rich men. When one of their husbands finds out, Kasimir ends up defending himself in front of a (female) judge and finds himself being backed up by all of his willing victims in court.

In a loop based on the historical example, Arsene Lupin is on the prowl, not only for jewels but also for the beautiful baroness (Brigitte Lahaie). At night the masked man climbs up to her balcony and gets involved in an extended orgy. When activities calm down, Arsene Lupin takes his opportunity and takes on the baroness, before he vanishes back into the night.

A series of episodes around sexual themes are framed by a central sex education plot, showing the viewer the "dangers of love".